Earth orientation effects on mobile VLBI baselines

Details Earth orientation effects on mobile VLBI baselines Earth orientation effects on mobile VLBI baselines

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984tdar.nasa..202a&link_type=abstract

In its The Telecommun. and Data Acquisition Rept. p 202-215 (SEE N84-32622 22-32)

Other

Earth Orientation, Error Analysis, Space Missions, Tracking (Position), Very Long Base Interferometry, Attitude (Inclination), Data Acquisition, Data Bases, Earth (Planet), Telecommunication

Scientific paper

Improvements in data quality for the mobile VLBI systems have placed higher accuracy requirements on Earth orientation calibrations. Errors in these calibrations may give rise to systematic effects in the nonlength components of the baselines. Various sources of Earth orientation data were investigated for calibration of Mobile VLBI baselines. Significant differences in quality between the several available sources of UT1-UTC were found. It was shown that the JPL Kalman filtered space technology data were at least as good as any other and adequate to the needs of current Mobile VLBI systems and observing plans. For polar motion, the values from all service suffice. The effect of Earth orientation errors on the accuracy of differenced baselines was also investigated. It is shown that the effect is negligible for the current mobile systems and observing plan.

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